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“ Evidence mounts that brains decide before their owners know about it. A piece of research about to be published in the Journal of Cognitive Neuroscience , by Joydeep Bhattacharya at Goldsmiths' College in London and Bhavin Sheth at the University of Houston, in Texas. [...] There is a precedent for such observations of unconscious thought in action. In the 1980s Benjamin Libet of the University of California, San Francisco, showed that simple decisions, such as when to move a finger, are made about three-tenths of a second before the brain's owner is aware of them, and subsequent work has found that the roots of such decisions can be seen up to ten seconds before they become conscious. But this is the first occasion that such a long lead time has been shown for more complex thought processes. ”